Testing and selection cosmological models with dark energy
Abstract
It is described dynamics of a large class of accelerating cosmological models in terms of dynamical systems of the Newtonian type. The evolution of the models is reduced to the motion of a particle in a potential well parameterized by the scale factor. This potential function can be reconstructed from distant supernovae type Ia data and many cosmological models represented in terms of the potential becomes in a good agreement with current observational data. It is proposed to use the information criteria to overcome this degeneracy within a class of A) dark energy models and B) simple models basing on modification of the FRW equation. Two class of models can be recommended by the Akaike (AIC) and Schwarz (BIC) information criteria: the phantom and CDM models.
Keywords
Cite
@article{arxiv.astro-ph/0603538,
title = {Testing and selection cosmological models with dark energy},
author = {Marek Szydlowski and Aleksandra Kurek},
journal= {arXiv preprint arXiv:astro-ph/0603538},
year = {2017}
}
Comments
Talk at Albert Einstein Century International Conference at Palais de l'Unesco, Paris, France, 18-23 July 2005; to appear in the Proceedings; AIP style files included, 6 pages, 2 figures